Bottle stopper



Ma 20 1924. my GNMAS BOTTLE STOPPER Fina May 21. 1923.

Patented May 20, 1924.

UNlTED STATES 1,494,559 PATENT OFFICE.

GEORGE N. MAS, OF LYNCHIB URG, VIRGINIA.

BOTTLE strorrmt Application filed May 21, 1928. Serial 1%. 640,512. i

and useful Improvements in Bottle Stop pers, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to new and useful improvements in a bottle stopper and has for its principal object the provision of a stopper which will make an air tight seal and which may be used a number of times, the stopper after being inserted in the bottle being carried thereby at all times and adapted to be cleaned at the same time that the bottle is cleaned. p

A further object consists in so forming the stopper that it will float upon the liquid within the bottle and the pressure within the bottle will hold the stopper in tight en gagement with its seat, the'stopper bein so shaped as to be self righting and held in such position at all times that it will be guided to its seat.

Another object resides in forming the stopper of such material that it will be perfectlysanitary, is non-porous, cannot accumulate germs, cannot become corroded by the liquid within the bottle, and can be easilycleaned. i

Still another object resides in providing a bottle in which the bottom is formed with an inwardly extending projection so that when the bottle is empty the stopper or valve forming the closure, when the bottle is filled, will be positioned between the side wall of the bottle and the projection to prevent rattling.

With the above and other objects in view, which will appear as the description proceeds, my invention consists in the novel details of construction and arrangement of parts described in the following specification and illustrated in the accompanying drawings, and while I have illustrated and described the preferred embodimentsof the invention, as they now appear to me, it will be understood that such changes may be made as will fall within the scope of the ap ended claims.

n the drawings:

Fig. 1 is a side elevation of a bottle with parts broken away to show an elevation of the stopper in position on its seat.

Fig. 2 is a perspective of the-rubber seat for the stopper.

Fig. 8 is a transverse vertical section through the stopper.

Fig. 4 is a top plan of a closure disc.

Fig. 5 is a transverse vertical section through a device used for removing the stopper from its seat, and i Fig. 6 shows a slightly modified form of bottle having an inwardly extending projection at the bottom; y

In the drawings lindicates the body of.

a bottle having the restricted neck 2 provided interiorly, at the top, with the cut-out portion forming a seat 3; A short distance below the seat 3 is formed an interior groove l'WlllCll receives a ring 5 of rubber or other suitable resilient material, this ring being of such a thickness as to extend beyond the inner wall of the neck and form a seat for the stopper 6. "The stopper is of substart tially pear shape and is formed of glass or other non-porous material. The stopper is hollow, as shown more particularly in Fig. 3 and the walls thereof increase in thickness from the top towards the bottom the bottom portion being of a substantial thickness as shown at 7 and the upper end being tapered as shown at 8 toform the point 9. The sides are also tapered towards the bottom as indicated at 10. This stopper being weighted at the lower end will be held in an upright position when floated upon a liquid in the bottle so that the smaller upper end will pass through the ring 5 and the enlarged end will be seated against the lower face of the ring. The smaller upper end of the stopper will be guided through the opening inthe ring 5 by the pointed end 9 and the tapered portions 8 and 10. The thick portion 7 at the bottom will add sufficient strength to the stopper'so that the same will not be broken by the pressure within the bottle. i

A pasteboard disc 11 maybe placed on the seat 3 formed by the cut-out portion at the top of the neck, this disc preventing dust, etc. from entering the neck of the bottle to engage on the stopper or its seat and also forming aconvenient means for advertising, it being understood that the bottlers name, trade-mark, or other data, might be printed thereon. 1

In bottling beverages there is usually pressure within the bottle and this pressure with the liquid itself will normally tend to gl I 1,494,559

hold the stopper in tight engagement with the rubber ring 5. VVhenit isdesired to remove thecontents from the bottle it is necessary to release the stopper from its seat and in order to do this I provide the tool indicated generally at 12. This tool comprises a head portion 13 which is preferably rounded at the top as shown at 14. and depending from the underside of the head is a projection 15 which is tapered exteriorly atv the end as shown at 16. Formed in the underside of the head, around the projection 15, is a groove 17 which willreceive the upper end of the bottle neck when the tool is driven to its lowermost position and prevent chipping or breaking of the glass.

In Fig. 6 of the drawings I have illustrated a slightly modified form of bottle in which the bottom is provided with the upwardly formed. concaved portion to provide a tapered projection 18 on the interior of the bottle, said projection being of a diameter less than that of the interior diameter of the bottle so asto leave a space 19 to receive the stopper or valve 6,. as shown, when thebottom is empty, said projection, cooperating with the side wall of.

the bottle to prevent the valve from rattling. Of course, it will be understood that as the bottle is filled with liquid the stopper or valve 6, being of the construction previously described, will raise and be positioned against the seat to form a tight clo-' sure for the bottle.

From the above detail description it is thought that the construction and advantages of my stopper will be clearly understood. The stopper being formed of glass or other non-porous, material will be perfectly sanitary, will not accumulate germs,

Will not be affected by the contents of-the bottle, and may be cleaned atthe same time the bottle is cleaned. As is quite clearly shown in the drawings the largest portion of the stopper is of less diameter than the interior of the neck so that in assembling it contacts with the ring 5.

the. stopper may be dropped through the neck of the bottle. After the stopper is inserted in the bottle the rubber ring 5 will be placed in the groove 4. As the liquid is introduced to the bottle the stopper will float on the top thereof and be raised until The smaller end of the stopper will be directed through the ring by the pointed end and tapered walls and the pressure within the bottle, when the bottle is filled, will. force the said stopper into tight engagement with its seat. The weighted end 7 makes the stopper selfrighting so as to be normally held in proper position for seating and. at the same time thestopper being of greater thickness adjacent the lower end at the point where it contacts with its seat, will prevent breaking. After the stopper is securely seated then the disc 11 of pasteboard or other material is placed upon the seat formed by the cut-out portion 3 and dirt cannot enter the bottle to engage the stopper or its seat. When it is desired to use the contents of the bottle the pasteboard disc 11 is removed and the tool12 used for forcing the stopper from its seat thereby releasing the pressure within the bottle. In using the tool it will be understood that the end of the projection 15 will engage the upper end of the stopper and as the tool is forced down the upper end of the neck will be received in the groove 17 and there will be no chipping or breaking of the glass at the top of the bottle neck. When the pressure is removed the stopper will drop sufficiently, the lower end being weighted, to allowthe contents to be poured from thebottle. Being of glass or similar non-porous materialthe shape of the stopper will be permanent and the same.

stopper can be used fora number of fillings of the bottle. The end of the projection 15 of the stopper releasing device or tool being tapered as shown at 16 the end.may be passed through the ring 5 if necessary in releasing the stopper. With the construc tion illustrated in Fig. 6 when the bottle is emptied the stopper or valve 6 will drop to the bottom of the bottleand as has been previously described will be held between the side wall of the bottle and the projec-.

tion .18 to prevent rattling.

Having fully described my invention what I claim as new and desire to secure by Letters Patentis:

1. In combination with a bottle having a seat interiorly thereof, a hollow stopper adapted to engage said seat, the walls of said stopper increasing in thickness from the top towards thebottom.

2. In combination with a bottle having a seat formed interiorly thereof, a hollow stopper adapted to-engage said seat, said stopper having its walls increasing in thickness from the top towardsthe bottom, and the upper end of the stopper being pointed.

3. In combination with a bottle having a seat interiorly thereof, a hollow stopper adapted to engage the seat, said stopper being pointed at the top and outwardly tapered from the top towards the bottom and the side walls thereof being increased in thickness from the top towards the bottom, the bottom being of greater thickness than the side walls.

In testimony whereof I hereunto afiix my signaturein the presence of two witnesses. 

